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ZUKIWORLD Discussion Forum => Technical Discussion - Beginner / Repair => Topic started by: E_man on October 20, 2009, 10:21:39 PM

Title: help
Post by: E_man on October 20, 2009, 10:21:39 PM
i had crank ground and i put oversized bearings in.. i went to start it and it backfired hard alot. i got it running but now it has a bad knock, do you think that i could have messed the bearings up when it backfired??
Title: Re: help
Post by: Drone637 on October 21, 2009, 02:40:17 AM
Sounds like your firing order is off.
Title: Re: help
Post by: E_man on October 21, 2009, 10:15:56 AM
it was but then i got all the ignition timing right on but it develped a knock.. i took the oil pan off and the number one connecting rod bearing was ground up. like it didnt get any oil. does anyone know how to check the oil pump??
Title: Re: help
Post by: Drone637 on October 21, 2009, 06:25:02 PM
The only way I know of testing it is to pull it off and put oil in one side, rotate the pump and make sure it moves to the other side.  At that point you are just as well off replacing it.

Did it scar up the crank or just the rod bearing?
Title: Re: help
Post by: E_man on October 21, 2009, 08:17:57 PM
just the rod bearing so thats good.. i think i will just replace it anyways makes me feel better
Title: Re: help
Post by: wildgoody on October 21, 2009, 08:22:15 PM
Get a new oil pump, sometimes the oil relief valve gets stuck open, I blew
a turbo and the rod bearings because of one pump with a bad blow off

Wild
Title: Re: help
Post by: lv2fsh on October 21, 2009, 10:41:00 PM
Make sure you put the O ring on the oil pickup tube or you won't get oil pressure because of loss of suction.
Title: Re: help
Post by: Rhinoman on October 22, 2009, 04:32:33 AM
Did you prime the pump before you ran it?
Title: Re: help
Post by: E_man on October 22, 2009, 10:44:22 AM
well i put oil in it and turned it over a few times before trying to start it. should i take all the plugs out and blow air thro all the passages?
Title: Re: help
Post by: sammypro.com on October 22, 2009, 12:26:57 PM
Quote from: E_man on October 22, 2009, 10:44:22 AM
well i put oil in it and turned it over a few times before trying to start it. should i take all the plugs out and blow air thro all the passages?

need more info please, what stage of break down or assembly are you. its a 1.3 right?
Title: Re: help
Post by: E_man on October 25, 2009, 06:01:03 PM
ya its a 1.3i took the engine out and mounted it to a engine stand have it upside down with the pan off. all the bearing are good except the 1 cylinder rod bearings. i took the oil filter off and blew air into the case and u can feel air coming out the holes in the rod journals on the crank.  idk wut to check next??
Title: Re: help
Post by: wildgoody on October 25, 2009, 07:50:17 PM
If you do what you've been told here, you have fixed the problem
Title: Re: help
Post by: captchee on October 25, 2009, 07:54:56 PM
Title: Re: help
Post by: E_man on October 26, 2009, 07:45:12 PM
use bearing grease instead of white grease? yes i cleaned the crank dipped the entire thing into a bucket of hot water with a concentrated mix of dawn dish soap. used a little file on the oil holes to take the edge off used a air compressor to blow it out. all of the other bearings got oil to them but the number 1
Title: Re: help
Post by: wildgoody on October 26, 2009, 09:09:09 PM
Did u put the bearing shell in the wrong side? oil hole on the cap?
Title: Re: help
Post by: E_man on October 26, 2009, 10:47:51 PM
no i put it on with the hole lined up
Title: Re: help
Post by: wildgoody on October 27, 2009, 12:29:33 AM
OK, did you use plastigauge to see what the clearance was?
If you had oil pressure, it must be a tight tollerance bearing, or the wrong bearing in the package,
this would starve and roast the bearing

Wild
Title: Re: help
Post by: captchee on October 27, 2009, 04:11:30 PM
 yep if all was done correctly then  its out of tolerances , eather the bearing , the journal  or the  conecting arm . cap itself